CVE-2016-9950
HIGH severity · CVSS 7.8 · Path traversal
7.8CVSS HIGH
Summary
An issue was discovered in Apport before 2.20.4. There is a path traversal issue in the Apport crash file "Package" and "SourcePackage" fields. These fields are used to build a path to the package specific hook files in the /usr/share/apport/package-hooks/ directory. An attacker can exploit this path traversal to execute arbitrary Python files from the local system.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)7%
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://bugs.launchpad.net/apport/+bug/1648806 ↗
Additional information
- NVD record
- https://bugs.launchpad.net/apport/+bug/1648806Patch
- http://www.securityfocus.com/bid/95011Advisory
- http://www.ubuntu.com/usn/USN-3157-1
- https://github.com/DonnchaC/ubuntu-apport-exploitationAdvisory
- https://www.exploit-db.com/exploits/40937/
- https://donncha.is/2016/12/compromising-ubuntu-desktop/Advisory